| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 6.05 | 0.00 | 4.60 | 18.11 | 90.69 | -43.26 | 59.08 | 0.7614 | -535.8 | -458.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-28 05:00:31 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 1.66 | 0.00 | 1.23 | 17.90 | 92.41 | -41.55 | 58.36 | 0.7436 | -612.0 | -510.2 | |
| 0.00 | 1.14 | 0.00 | 0.87 | 18.07 | 90.47 | -43.48 | 59.26 | 0.7634 | -667.0 | -569.4 | |
| 0.00 | 1.23 | 0.00 | 0.94 | 17.96 | 90.20 | -43.75 | 59.54 | 0.7655 | -559.0 | -434.9 | |
| 0.00 | 0.88 | 0.00 | 0.68 | 18.47 | 89.90 | -44.05 | 59.09 | 0.7709 | -464.0 | -400.9 | |
| 0.00 | 1.14 | 0.00 | 0.88 | 18.33 | 89.64 | -44.31 | 59.40 | 0.7727 | -377.0 | -349.1 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |